5. Complementary feeding counselling. The three counselling interventions (Behaviour change communication, BCC) will be universal in all intervention arms and the two types of supplementation will be provided in different combinations explained elsewhere. This design will allow testing for synergy, and help to determine the effect size of selected individual interventions, such as evaluating how much effect prenatal or complementary food supplementation would have on improving the length-for-age z score (LAZ).